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+====Monitoring a ModelHost Model====
+If you want to monitor the status of a ModelHost model, there are a few OPC-UA points you can use.
+===Service Running===
+First, if the model isn't running at all, you won't be able to connect to the OPC-UA server.
+===Process Responding===
+To check if the process is responding, we have a watchdog timer/counter at the OPC-UA point **Internal/Inputs/Clock** which constantly counts upwards.
+Should this stop, it would indicate that something has completely blocked the models from executing.
+===Communicating===
+To check if new values are coming into the ARDI system and the ModelHost process, you can check the **Internal/Inputs/Updates** counter.
+This irregularly-updating counter measures how many individual points of data have changed since it first subscribed to live ARDI information.
+If this stops, this might indicate a loss of connection or a failure in one or more data sources. Note that only //changes// are sent - so this counter may move very slowly during down-times or other process outages.

Monitoring a ModelHost Model